| Rank | Country | lowest point | Elevation extremes |
134 | Macau | 0 |  lowest point: South China Sea 0 m highest point: Coloane Alto 172 m |
135 | Madagascar | 0 | lowest point: Indian Ocean 0 m highest point: Maromokotro 2,876 m |
136 | Malaysia | 0 | lowest point: Indian Ocean 0 m highest point: Gunung Kinabalu 4,100 m |
137 | Maldives | 0 | lowest point: Indian Ocean 0 m highest point: unnamed location on Wilingili island in the Addu Atoll 2.4 m |
138 | Malta | 0 | lowest point: Mediterranean Sea 0 m highest point: Ta'Dmejrek 253 m (near Dingli) |
139 | Marshall Islands | 0 | lowest point: Pacific Ocean 0 m highest point: unnamed location on Likiep 10 m |
140 | Mauritius | 0 | lowest point: Indian Ocean 0 m highest point: Mont Piton 828 m |
141 | Mayotte | 0 | lowest point: Indian Ocean 0 m highest point: Benara 660 m |
142 | Micronesia, Federated States of | 0 | lowest point: Pacific Ocean 0 m highest point: Dolohmwar (Totolom) 791 m |
143 | Monaco | 0 | lowest point: Mediterranean Sea 0 m highest point: Mont Agel 140 m |
144 | Montenegro | 0 | lowest point: Adriatic Sea 0 m highest point: Bobotov Kuk 2,522 m |
145 | Montserrat | 0 | lowest point: Caribbean Sea 0 m highest point: lava dome in English's Crater (in the Soufriere Hills volcanic complex) estimated at over 930 m (2006) |
146 | Mozambique | 0 | lowest point: Indian Ocean 0 m highest point: Monte Binga 2,436 m |
147 | Namibia | 0 | lowest point: Atlantic Ocean 0 m highest point: Konigstein 2,606 m |
148 | Nauru | 0 | lowest point: Pacific Ocean 0 m highest point: unnamed location along plateau rim 61 m |
149 | Navassa Island | 0 | lowest point: Caribbean Sea 0 m highest point: unnamed location on southwest side 77 m |